What are the hadith in Islam?

parts of the Quran

reports of the words and life of Muhammad

list of commandments

Islamic schools

In Islam, hadiths are second in importance only to the Quran, and Muslims are encouraged to emulate Muhammad's actions in their daily lives. Unlike the Quran, which was compiled under the official direction of the early Islamic State in Medinah, the hadith reports were not compiled by a central authority. Today, they are classified by Muslim clerics into categories of "authentic", "good" or "weak".